文章详细信息 关键词： 早稻;;需水量;;灌溉需水量;;气候变化 [gap=1171]Keywords: early rice;crop water requirement;irrigation water requirement;climate change
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灌溉需水量（Irrigation water requirement）指必须通过灌溉补充的土壤原有储 水量和有效降雨量及地下水利用量不能满足作物蒸发蒸腾，冲洗盐碱以及其它方面要求 的水量（Jens...
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农业灌溉用水量 irrigation water requirement ; agricultural irrigation water amount ; agricultural duty of water
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On the condition of total sown area being fixed, reducing the percentage of cereal crop and increasing cash and other crops both can significantly reduce agricultural water consumption and net irrigation water requirement per unit area.
在农作物总播种面积一定条件下,降低粮食作物比例、增大经济作物与其它农作物比例均能显著降低流域单位面积农业耗水量及单位面积农业净灌溉需水量。
参考来源 - 西北干旱内陆区石羊河流域农业耗水对变化环境响应的研究The main purpose of this paper is to analyze the features of irigation water process and put forward a decomposed model for the long term forecasting of regional irrigation water requirement,which is based on time series analysis.
本文基于时间序列分析方法，建立了区域农业灌溉用水量长期预报分解模型，给出了灰色GM（1，1）趋势预测、方差周期分析以及ARMA（2n，2n-1）随机分析相结合的模型求解方法，并编制了相应模型软件支持系统。
参考来源 - 区域农业灌溉用水量长期预报模型研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Based on the data collected in this study, net irrigation water requirement of main crop in china has been gotten.
根据收集到的资料，计算得出全国主要作物的净灌溉需水量。
Rainfall frequency analysis is used commonly to determine probability of irrigation water requirement, and to choose typical years for irrigation project design.
灌区灌溉设计中，常用降雨量进行频率分析来选取灌溉设计保证率及其对应典型年。
The water requirement and growth in paddy rice were studied under four different irrigation methods and different evaporation and seepage with pot culture.
利用桶栽试验，研究了在不同灌溉方式及不同蒸发渗漏处理下的水稻需水量和对水稻生长的影响。
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